import com.mysql.jdbc.jdbc2.optional.MysqlDataSource;
import javax.sql.DataSource;
import java.io.PrintWriter;
import java.sql.*;
import java.util.logging.Logger;
public class JdbcRead {
    public static void main(String[] args) throws SQLException {
        DataSource dataSource = new MysqlDataSource();
        ((MysqlDataSource)dataSource).setUrl("jdbc:mysql://127.0.0.1:3306/practice?characterEncoding=utf8&useSSL=false");
        ((MysqlDataSource)dataSource).setUser("root");
        ((MysqlDataSource)dataSource).setPassword("111111");

        Connection connection = dataSource.getConnection();

        String sql = "select * from student";
        PreparedStatement statement = connection.prepareStatement(sql);

        ResultSet resultSet = statement.executeQuery();

        while (resultSet.next()) {
            int id = resultSet.getInt("id");
            String name = resultSet.getString("name");
            System.out.println("id = " + id + ", name = " + name);
        }
        resultSet.close();
        statement.close();
        connection.close();
    }
}
